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LUBE EGM - User Manual

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EGM
Motor Driven Grease Pump
Owners Manual
LUBE USA, INC.
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Overview

This document outlines the operation and maintenance of the EGM Motor Driven Grease Pump, designed for lubricating various points by delivering small amounts of grease through metering valves.

Function Description

The EGM Motor Driven Grease Pump is a lubrication system that delivers grease to multiple points. It operates by utilizing a motor to drive the pump, which then dispenses grease through a network of tubing and metering valves. The system is designed to ensure precise and controlled lubrication, crucial for the smooth operation and longevity of machinery.

The pump's core function involves the controlled discharge of grease. In models like the EGM-T, the system can operate in two modes: Series Progressive and P.D.I. (Positive Displacement Injector). This dual functionality allows for versatility in lubrication applications, adapting to different machinery requirements. The discharge process is regulated by a timer, which controls both the "ON" time (when grease is actively discharged) and the "OFF" time (interval between discharges). This timed operation ensures that lubrication occurs at predetermined intervals, preventing over-lubrication or under-lubrication.

For models like EGM-S and EGM-N, the operation is simpler, primarily involving a power supply "ON" and a discharge timer "ON," followed by an interval timer "ON." This sequence is repeated to maintain continuous lubrication. The system's ability to be controlled by a machine's internal timer allows for seamless integration into existing automated processes, enhancing efficiency and reducing manual intervention.

A critical component of the pump's function is its pressure relief mechanism. In the EGM-T model, a switching solenoid valve timer controls the discharge from both Series Progressive and P.D.I. ports, as well as the pressure relief for P.D.I. This ensures that the system operates within safe pressure limits, preventing damage to the pump or tubing due to excessive pressure buildup.

Usage Features

The EGM pump is designed for straightforward installation and operation, with several features aimed at user convenience and system reliability.

Installation: The pump should be mounted firmly against a wall or on a flat stand/board using M8 screws. Anti-vibration rubber is recommended to mitigate the effects of vibration, ensuring stable operation and extending the pump's lifespan.

Wiring: The solenoid and motor (DC24V) have specific polarities (+, -), which must be observed during wiring. The leads are color-coded (White for + and Black for -) to facilitate correct connection. Insulated wires are recommended, especially when there's a possibility of contact with the machine body or human operators, to ensure safety. The manual provides wiring diagrams for EGM-T, EGM-S, and EGM-N models, illustrating the connections for the motor, solenoid, main switch, and DC24V power supply.

Tubing Connection: Tubing must be connected to the discharge port with proper torque to prevent grease leakage. This ensures that the grease is delivered efficiently to the lubrication points without waste or mess.

Grease Usage and Refilling: The pump is designed to use specific grease cartridges as outlined in the specifications. Using incompatible grease can lead to pump malfunction or clogging. For cartridge-type models (400cc and 700cc), replacement involves pulling up a chain (for 400cc), turning the cover counter-clockwise, removing the empty cartridge, and inserting a new one. Care must be taken to prevent air or foreign particles from entering the pump during this process. The cover is then tightened firmly. For reservoir-type models, grease should be refilled through the refill port when the follow plate reaches a low level. Again, preventing air and foreign particles from entering is crucial.

Working Conditions: The pump is designed to operate within specific ambient temperature (0°C to +40°C) and humidity (35% to 85% RH) ranges. Adhering to these conditions ensures optimal performance and prevents operational issues.

Air Bleeding: After connecting tubing or if air is introduced into the pump, it is essential to bleed the air. This involves loosening the Air Bleeding Plug, running the pump until no air comes out, and then tightening the plug. This step is critical for maintaining proper pump pressure and grease flow.

Timer Settings: The pump's operation is controlled by a machine-integrated timer, which sets the discharge "ON" and "OFF" times. The "ON" time should be less than 7 minutes and 30 seconds, while the "OFF" time should be at least three times longer than the "ON" time. Failure to adhere to these settings can activate the solenoid valve thermostat and prevent pump pressure from rising. When filling the main tubing with grease or during commissioning, a specific sequence of 30-second "ON" and 90-second "OFF" cycles, repeated for a maximum of 30 minutes, is recommended, followed by a one-hour interval.

Maintenance Features

The manual emphasizes several maintenance aspects to ensure the longevity and reliable operation of the EGM grease pump.

Grease Contamination Prevention: Grease contamination is a significant concern, categorized into two types:

  1. Before Installation: This includes foreign particles in the tubing or pump reservoir, or manufacturing defects in assembly or connecting parts.
  2. During Operation: This can involve foreign particles from external sources, particles generated within the system, condensation of moisture due to temperature changes, or grease separation.

Measures Against Contamination:

  • Cleaning: Regularly clean the reservoir and remove any foreign particles.
  • Proper Storage: Store grease for refilling in a proper place. If the system is installed outdoors, extra care must be taken to prevent dust or rain from entering the grease, which could lead to system malfunction.

Troubleshooting: The manual provides a comprehensive troubleshooting guide to address common issues:

  • No Grease Discharge: This could be due to low grease levels in the reservoir, air in the pump, or the pump not operating. Solutions include refilling grease, performing air bleeding, or checking wire connections. If the motor exceeds its life expectancy, it should be replaced.
  • No Pressure in Main Tubing: This can be caused by no grease discharge (refer to above measures), air in the tubing, foreign particles at the ball seating section of the relief valve, incorrect pressure setting of the relief valve, grease leakage from pipe connections, damaged tubing, or a malfunctioning pressure relief valve. Solutions include bleeding air from tubing, disassembling and cleaning the relief valve, setting proper pressure, tightening or re-piping connections, replacing damaged tubing, and checking/correcting wiring for the relief valve.
  • Air in the System: If air is in the pipe, refer to general air bleeding measures. If air is introduced due to low grease levels in the reservoir, refill the reservoir or replace the cartridge and perform an air purge.
  • No Grease Discharged from Valve: This indicates clogged valve(s). The solution is to replace the valve(s). If no grease is filled in the tail tubing or if the relief valve malfunctions, fill the tail tubing with grease at installation and check/correct wiring.
  • Pipe Pressure Not Decreasing Properly: This can be due to clogged valve(s) and termination fitting(s), crashed tubing, or improper NLGI# grease. Solutions include disassembling, inspecting, and replacing valves/termination fittings, replacing crashed tubing, and checking NLGI# and ambient temperature.

By following these guidelines for installation, operation, and maintenance, users can ensure the efficient and reliable performance of the EGM Motor Driven Grease Pump, contributing to the overall health and longevity of their machinery.

LUBE EGM Specifications

General IconGeneral
BrandLUBE
ModelEGM
CategoryWater Pump
LanguageEnglish

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